26.
Compass: South Dakota (Fodor's Compass American Guides) (1998)
by Griffith, T. D., Parr, Barr...
ISBN: 9781878867476
27.
Hiking the Sierra Nevada : A Guide to the Area's Greatest Hiking Adventures
by Parr, Barry
ISBN: 9781493062188
29.
Hiking the Sierra Nevada: a Guide to the Area's Greatest Hiking Adventures
by Parr, Barry
ISBN: 9781493011216